I've definitely seen worse. If the dealer won't fix it, it is pretty easy to pull by prying on the FD end and popping it out past the internal C-clip. I would use rust converter, avoiding getting too much on the rubber seals to prevent intrusion into the bearings, then a good quality Rustoleum paint. But that is just me. Installation is a bit harder as you have to peel back the forward boot to help get it onto the trans spline. I taped the upper U-joint to stiffen it up. It also helps to remove the lower shock bolt and support he swingarm in a more horizontal position, though you can do it without that.